LSM: fix documentation for sb_copy_data hook

The @type argument of the sb_copy_data hook was removed
in the commit "LSM/SELinux: Interfaces to allow FS to control
mount options" (e0007529). This commit removes the description
of the @type argument from the LSM documentation.
Signed-off-by: Denis Efremov <efremov@ispras.ru>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: James Morris <james.morris@microsoft.com>

include/linux/lsm_hooks.h

@@ -127,7 +127,6 @@
  *	options cleanly (a filesystem may modify the data e.g. with strsep()).
  *	This also allows the original mount data to be stripped of security-
  *	specific options to avoid having to make filesystems aware of them.
- *	@type the type of filesystem being mounted.
  *	@orig the original mount data copied from userspace.
  *	@copy copied data which will be passed to the security module.
  *	Returns 0 if the copy was successful.